Co-workers' way to work, perhaps

• One way to get to work
• Commuting choice
• Commuting group
• Commute with coworkers, on a slightly larger scale

Wiktionary Word definitions in Wiktionary
n. The transport of a pool of commuters in a shared van vb. 1 (context transitive English) to transport people in a vanpool 2 (context intransitive English) to be transported in a vanpool

Wikipedia Word definitions in Wikipedia
Vanpools are an element of the transit system that allow groups of people to share the ride similar to a carpool , but on a larger scale with concurrent savings in fuel and vehicle operating costs. Vanpools have a lower operating and capital cost than most ...